Oxy-fuel Combustion Boiler for $CO_2$ capturing:50 kW Class Model Test and Numerical Simulation

순산소 연소를 채택한 $CO_2$ 회수형 보일러의 성능특성:50kW급 모형 실험 및 수치해석

A novel oxy-fuel burner for a boiler has been devised and composed into a 50 kW class boiler system. A series of test has been conducted to show the characteristics of combustion, exhaust gas and the boiler. Numerical simulations have been also performed and validated against the experimental data to discuss detailed physics. The oxy-fuel burner can effectively heat the combustion chamber with the significantly reduced combustion gas, which enables to realize the compactness of the system. The composition of exhaust gas reveals that the sealing of the system is crucial to achieve high $CO_2$ concentration and low $NO_X$ emission.